<template>
  <div style="height: 100vh">
    <el-row>
      <el-col :span="isMobile ? 0 : 12" v-show="!isMobile">
        <system-background></system-background>
      </el-col>
      <el-col :span="isMobile ? 24 : 12">
        <div>
          <logo v-show="isMobile && heightTooLow"></logo>
          <div :class="['register', isMobile ? 'mobileLogin' : 'noMobileLogin']">
            <el-form ref="registerRef" :model="registerForm" :rules="registerRules" class="register-form">
              <h2 class="title">注 册</h2>
              <el-form-item prop="email">
                <el-input
                  v-model="registerForm.email"
                  type="text"
                  auto-complete="off"
                  placeholder="邮箱"
                >
                  <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon"/>
                </el-input>
              </el-form-item>
              <el-form-item prop="password">
                <el-input
                  v-model="registerForm.password"
                  type="password"
                  auto-complete="off"
                  placeholder="密码"
                  @keyup.enter.native="handleRegister"
                >
                  <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon"/>
                </el-input>
              </el-form-item>
              <el-form-item prop="confirmPassword">
                <el-input
                  v-model="registerForm.confirmPassword"
                  type="password"
                  auto-complete="off"
                  placeholder="确认密码"
                  @keyup.enter.native="handleRegister"
                >
                  <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon"/>
                </el-input>
              </el-form-item>
              <el-form-item prop="code" v-if="captchaEnabled">
                <el-input
                  v-model="registerForm.code"
                  auto-complete="off"
                  placeholder="验证码"
                  style="width: 63%"
                  @keyup.enter.native="handleRegister"
                >
                  <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon"/>
                </el-input>
                <div class="register-code">
                  <el-button
                    size="medium"
                    :type="countdown > 0 ? 'info' : 'primary'"
                    :disabled="isSending || countdown > 0"
                    @click="getVerificationCode"
                  >
                    {{ buttonText }}
                  </el-button>
                </div>
              </el-form-item>
              <el-form-item style="width:100%">
                <el-button
                  :loading="loading"
                  size="medium"
                  type="primary"
                  style="width:100%"
                  @click.native.prevent="handleRegister"
                >
                  <span v-if="!loading">注 册</span>
                  <span v-else>注 册 中...</span>
                </el-button>
                <div style="float: right">
                  <router-link class="link-type" :to="'/login'">使用已有账户登录</router-link>
                </div>
              </el-form-item>
            </el-form>
            <div class="el-register-footer">
              <span>{{ footerContent }}</span>
            </div>
          </div>
        </div>
      </el-col>
    </el-row>
  </div>
</template>

<script>
import SystemBackground from '@/components/SystemBackground'
import Logo from "@/components/Logo"
import { getEmailCode, register } from "@/api/login"
import { mobileFlag } from "@/utils/yxx"
import settings from "@/settings"

export default {
  name: 'Register',
  components: { SystemBackground, Logo },
  data() {
    const equalToPassword = (rule, value, callback) => {
      if (this.registerForm.password !== value) {
        callback(new Error("两次输入的密码不一致"))
      } else {
        callback()
      }
    }

    return {
      countdown: 0,     // 倒计时秒数
      isSending: false, // 请求发送状态
      intervalId: null,  // 定时器ID
      isMobile: false,
      heightTooLow: false,
      codeUrl: "",
      registerForm: {
        email: "",
        password: "",
        confirmPassword: "",
        code: "",
        uuid: ""
      },
      registerRules: {
        email: [
          { required: true, trigger: "blur", message: "请输入您的账号" },
          { type: 'email', message: '请输入正确的邮箱地址', trigger: ['blur', 'change'] },
          { min: 5, max: 50, message: '邮箱长度必须介于 5 和 50 个字符之间', trigger: 'blur' }
        ],
        password: [
          {required: true, trigger: "blur", message: "请输入您的密码"},
          {min: 5, max: 20, message: "用户密码长度必须介于 5 和 20 之间", trigger: "blur"},
          {pattern: /^[^<>"'|\\]+$/, message: "不能包含非法字符：< > \" ' \\\ |", trigger: "blur"}
        ],
        confirmPassword: [
          {required: true, trigger: "blur", message: "请再次输入您的密码"},
          {required: true, validator: equalToPassword, trigger: "blur"}
        ],
        code: [{required: true, trigger: "change", message: "请输入验证码"}]
      },
      loading: false,
      captchaEnabled: true,
      footerContent: settings.footerContent
    }
  },
  computed: {
    buttonText() {
      if (this.isSending) return '发送中...';
      if (this.countdown > 0) return `${this.countdown}秒后重试`;
      return '获取验证码';
    }
  },
  mounted() {
    this.checkScreenSize()
    window.addEventListener('resize', this.checkScreenSize)
  },
  beforeDestroy() {
    window.removeEventListener('resize', this.checkScreenSize)
  },
  methods: {
    checkScreenSize() {
      this.isMobile = mobileFlag()
      this.heightTooLow = window.innerHeight <= 660
    },
    async getVerificationCode() {
      // 防止重复点击
      if (this.isSending || this.countdown > 0) return
      if (!this.registerForm.email) {
        this.$message.error("请先输入正确的邮箱");
        return
      }
      this.isSending = true
      getEmailCode(this.registerForm.email).then(response => {
        this.registerForm.uuid = response.uuid
        this.$message.success('验证码已发送，请查收');
        this.startCountdown();
      }).catch(error => {
        this.$message.error(error.data.message || '发送失败，请重试');
      }).finally(() => this.isSending = false)
    },
    startCountdown() {
      // 重置倒计时
      this.countdown = 60;

      // 清除现有定时器
      if (this.intervalId) clearInterval(this.intervalId);

      // 开始倒计时
      this.intervalId = setInterval(() => {
        if (this.countdown <= 1) {
          clearInterval(this.intervalId);
          this.intervalId = null;
        }
        this.countdown--;
      }, 1000);
    },
    handleRegister() {
      this.$refs.registerRef.validate(valid => {
        if (valid) {
          this.loading = true
          register(this.registerForm).then(res => {
            const email = this.registerForm.email
            this.$alert("<font color='red'>恭喜你，您的邮箱 " + email + " 注册成功！</font>", '系统提示', {
              dangerouslyUseHTMLString: true,
              type: 'success'
            }).then(() => {
              this.$router.push("/login")
            }).catch(() => {
            })
          }).catch(() => {
            this.loading = false
            if (this.captchaEnabled) {
              this.getCode()
            }
          })
        }
      })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
.mobileLogin {
  background-color: #353e54;
  height: 100vh;
  min-height: 400px;
}
.noMobileLogin {
  border-color: #bfbfbf;
  height: 100vh;
  background-color: #bfbfbf;
  min-height: 500px;
}
.register {
  display: flex;
  justify-content: center;
  align-items: center;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.register-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.register-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.register-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-register-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.register-code-img {
  height: 38px;
}
</style>
